I think CPM have two opinions ; Prakash Karat and his Kerala MP is are against Nuclear Treaty and Praksah Karat, Somanath Chatterje, Jyothi Basu, Buddhadeb Bhattacharjee and ther Bengal team are in favor of signing the agreement. so this will lead a split in the party. The latest informaton indicates that there are some CPI (M) MP's will abstain from voting. Let India Win.